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A151538 Number of 1-sided strip polyedges with n cells. 1
1, 2, 6, 14, 40, 102, 284, 752, 2069, 5547, 15134, 40712, 110456, 297066, 802808, 2156378, 5810329, 15584271, 41894990 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..19.

Ed Pegg, Jr., Illustrations of polyforms

Eric Weisstein's World of Mathematics, Polyedge

CROSSREFS

Cf. A019988, A037245, A151537.

Sequence in context: A263731 A293742 A271895 * A284998 A009423 A008325

Adjacent sequences:  A151535 A151536 A151537 * A151539 A151540 A151541

KEYWORD

nonn,hard,more

AUTHOR

Ed Pegg Jr, May 13 2009

EXTENSIONS

a(13)-a(19) from Joseph Myers, Oct 03 2011

STATUS

approved

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Last modified December 12 01:08 EST 2017. Contains 295936 sequences.